Hi Ted, hi all!
I recently noticed an interesting behavior: one of the bulbs of the license plate illumination went out, resulting in the one touch blinker function being broken. Broken means: on one touch, blinkers start blinking in the correct direction, but never stops. To stop it, you have to do a "fixed" (so no one touch) blinking in die other direction.
This has been observed in a 2001 E39 with MID.